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\"\"If 1080p in a phone sounds like a lot, that's because it is. When the first iPhone<\/a> with a \"retina display<\/a>\" came out, it packed a 3.5\" screen with a resolution<\/a> of 960x640, giving it 326 pixels per inch (or ppi). Notably, when Apple increased the physical size of the iPhone to 4\", it also increased the resolution to 1136x640 which is still 326ppi. In most cases, 300ppi or so exceeds what the human eye is able to distinguish at a normal viewing distance (which is what Apple's \"Retina\" is supposed to refer to).
\n
\nA 1080p phone, on the other hand, has an insane amount of pixels in comparison. In a 5\" phone, a display of 1920x1080 has a whopping density of 440ppi. If you go down to, say a 4.7\" phone like the HTC One, you reach 468ppi. That's a resolution that's about 50% higher than what most human eyes can readily distinguish under normal usage. You can probably see pixels if you squint really close, but is there any real benefit to going up this high?
\n
\nHigh resolution displays use more battery power<\/strong>
\nIt's impossible to add more pixels to a device without needing power to run them. Some types of panels like AMOLED only light up pixels as they're needed, which means you can conserve some power by using darker themes, but LCD displays will light them all up no matter what, which requires more juice. Not only to physically turn them on, but it also requires battery power to run the processor harder to account for the added complexity (which we'll come back to in a bit).
\n
Just how much extra power does it take? Well, when Apple released the 3rd generation iPad<\/a> with \"retina\" (here defined as 264ppi), it came with a whopping 11,666 mAh battery, which was 70% larger than the battery in the previous generation. However, it still only promised the same 10 hours of use. Why? Well, it would be oversimplifying to say it's solely because of the new display, but it's also correct to say that doubling the ppi over the previous tablet (132ppi for the iPad 2<\/a>) would require a significant increase in power consumption.
\n
You can somewhat see this reflected in Android<\/a> phones as well. While Android phones vary wildly in battery size, the ones that last the longest are also typically the ones with the biggest batteries. LaptopMag rated the LG G2 as the Android phone with the best battery life around. It also carries a 3,000 mAh battery. Comparatively, the Moto X has a 720p display with 2,200 mAh battery. Both phones will run a full day (and the G2 can actually run longer than that), but larger batteries don't make phones more efficient. They're more akin to Hummers with large tanks than a fuel-efficient hybrid.
\n
\nHigh resolution displays use more processing power<\/strong>
\nWhile powering all those pixels will have a direct effect on battery life, they'll have to go through some processing power on the way. How much is difficult to gauge since there are so many factors that affect performance and efficiency in software. However, as one independent game developer explained to us, increasing the number of pixels in a display will always tax the GPU more:
\n
\nThese higher res screens tax fragment shaders (which do the processing for each pixel) on the GPU more. That means you get worse battery life for the same GPU\/battery because for all applications more pixels need to be processed. It also means that in anything that actually gets near the limits of the hardware you have (primarily games), you're going to hit those limits much more quickly. Especially because, in games, the fragment shaders are, the vast majority of the time, going to be the primary bottleneck.
\n
\nIn most cases, we accept this trade-off because things look nicer. However, since the human eye can't tell much of a difference between a 300+ppi display and a 400+ppi display, the extra processing power needed to run those pixels is mostly wasted. Ironically, having a higher resolution display can result in worse-looking graphics purely because the GPU is wasting time on rendering more raw pixels (that you probably can't see), instead of allowing developers to use those resources on adding more elements or details (like the advanced particle systems, lighting effects, and texture mapping you see in advanced AAA games).
\n
\nHigh resolution displays are Good for CJK characters<\/strong>
\nThere are, however, a few benefits to having a high resolution display-like CJK characters. If you haven't heard of CJK characters, then this benefit doesn't apply to you. CJK stands for Chinese, Japanese, or Korean characters. Unlike the Latin-based alphabet that consists of a small collection of a couple dozen or so distinct symbols that create words based on combinations, CJK symbols can be distinct words on their own and potentially bear striking similarities to different words.
\n
\nThe question of whether or not super high-resolution displays actually aid in reading CJK characters is, as with anything, highly subjective. However, text is one of the first things to become illegible at low-resolutions and CJK characters are considerably more complex than Latin ones.
\n
\nKeep in mind that, while it's true in an overwhelming majority of cases that a ppi exceeding 300 is overkill, it depends heavily on how good your eyesight is and how far away you view your device. You probably don't normally look at your phone three inches away from your face, but if you do, 300ppi might not be enough.
\n
If you have a need to read text using CJK characters, your best bet is to just look at a phone with a 1080p display<\/a> yourself, hold it the way you normally hold your phone, and see how it feels for you. However, if you stick with latin-based characters, it's equally likely that trying to distinguish between two screens will just result in your brain playing tricks on you.
\n
\nUltimately, your phone choice is up to you and none of them are particularly bad. However, the higher up the ppi in phones get, the more questionable the benefit is. Even if you feel a tangible benefit to a 1080p display in a 5\" phone, it won't stop there. LG, for example, recently showed off a 5.5\" display with a mind-boggling 538ppi. Arguments about viewing distances, special characters, and \"retina\" definitions aside, there's an upper limit for phone displays and we're straddling that line now. Chances are for most consumers, worrying about battery life and performance should be a much higher priority.
\n
\nSource: Eric Ravenscraft, Lifehacker.com<\/a>\n\n<\/body>","next_sibling":[{"msid":26305271,"title":"The Google machine","entity_type":"ARTICLE","link":"\/news\/devices\/the-google-machine\/26305271","category_name":null,"category_name_seo":"devices"}],"related_content":[],"msid":26306637,"entity_type":"ARTICLE","title":"Do you need a smartphone with 1080p display?","synopsis":"\u200bIf 1080p in a phone sounds like a lot, that's because it is. When the first iPhone with a \"retina display\" came out, it packed a 3.5\" screen with a resolution of 960x640, giving it 326 pixels per inch (or ppi).","titleseo":"devices\/do-you-need-a-smartphone-with-1080p-display","status":"ACTIVE","authors":[],"Alttitle":{"minfo":""},"artag":false,"artdate":"2013-11-24 12:10:59","lastupd":"2013-11-24 12:27:07","breadcrumbTags":["iPhone","android","resolution","iPad","iPad 2","Retina Display","Devices","Smartphone","1080p display"],"secinfo":{"seolocation":"devices\/do-you-need-a-smartphone-with-1080p-display"}}" data-authors="[" "]" data-category-name="Devices" data-category_id="12" data-date="2013-11-24" data-index="article_1">

你需要智能手机与1080 p显示吗?

如果1080 p在电话听起来很多,因为它是。当第一个iPhone“视网膜显示屏”出来,这包装一个3.5 "屏幕分辨率为960 x640,给它每英寸326像素(ppi)。

  • 2013年11月24日更新27点坚持
如果1080 p在电话听起来很多,因为它是。当第一个iPhone以“视网膜显示屏“出来,它包装3.5”屏幕的决议960年x640,每英寸326像素(ppi)。值得注意的是,当苹果iPhone的物理尺寸增加到4”,它还增加了1136 x640还是326 ppi的决心。在大多数情况下,300 ppi超过人眼能够分辨什么正常的观看距离(也就是苹果的“视网膜”应该指)。

1080 p的手机,另一方面,有一个疯狂的像素数量比较。5”手机,显示的1920 x1080高达440 ppi的密度。如果你去,说4.7“电话像HTC,你达到468 ppi。这个决议的约50%高于大多数人眼很容易区分在正常使用。你可以看到像素如果你斜视非常接近,但真正有什么好处会这么高?

高分辨率显示使用更多的电池
添加更多的像素是不可能的设备不需要权力运行它们。某些类型的面板像AMOLED只照亮像素需要它们,这意味着你可以节省一些权力通过使用深色的主题,但液晶显示器将光他们所有人无论如何,这需要更多的果汁。不仅身体打开它们,但也需要电池供电运行处理器难以占增加的复杂性(我们将回到一点)。

到底有多少额外的权力呢?好吧,当苹果发布了第三代iPad“视网膜”(这里定义为264 ppi),它高达11666毫安时电池,这是上一代比电池大70%。然而,它仍然只承诺相同的10个小时的使用。为什么?是简单说仅仅因为新显示的,但它也是正确的说翻ppi过去平板(132 ppi的iPad 2)需要一个显著增加能耗。

一定程度上可以看到这中反映出来安卓手机。在电池大小,Android手机大相径庭的持续时间最长的也通常最大的电池。LaptopMag额定LG G2是最好的Android手机电池寿命。这也带来了3000 mAh电池。相对,Moto X 720 p显示2200 mAh的电池。两款手机运行一天(G2可以实际运行的时间比),但更大的电池不要让手机更有效率。他们更类似于悍马大坦克不是省油的混合。

高分辨率显示使用更多的处理能力
而推动这些像素将对电池寿命有直接影响,他们必须经过一些处理能力。多少是很难衡量,因为很多因素影响软件的性能和效率。然而,作为一个独立游戏开发者向我们解释,增加了一个显示的像素数量总是GPU征税:

屏幕的分辨率越来越高税收片段着色器(为每个像素做处理)的GPU。这意味着你变得更糟电池寿命为同一GPU /电池因为所有应用程序都需要处理更多的像素。这也意味着在附近的任何实际硬件的限制(主要是游戏),你会更快地达到这些限制。特别是因为,在游戏、片段着色器,绝大多数的时间,将是主要的瓶颈。

在大多数情况下,我们接受这个交易因为事情看起来更好。然而,由于人眼不能告诉300 +的区别ppi显示器和400 + ppi显示器,额外的处理能力需要运行这些像素是浪费。具有讽刺意味的是,有一个高分辨率显示器可以导致长得更难看的图形纯粹是因为GPU上浪费时间呈现更多的原始像素(你可能看不到),而不是允许开发人员使用这些资源添加更多的元素或细节(像先进的粒子系统,灯光效果,纹理映射在先进的AAA级游戏)。

高分辨率显示有益于CJK字符
然而,有几个好处有高分辨率显示CJK字符。如果你还没有听说过CJK字符,那么这个好处并不适用于你。CJK代表中国、日本或韩国的字符。与拉丁字母,由一个小的几个十几个不同的符号集合创建基于组合单词,CJK符号可以不同的单词在他们自己的和潜在的惊人的相似之处不同的单词。

的问题是否超高分辨率显示实际上帮助阅读CJK字符,与任何东西一样,高度主观的。然而,文本的第一件事成为字迹模糊的低分辨率和CJK字符比拉丁语的复杂得多。

请记住,虽然的确在绝大多数情况下,ppi超过300杀伤力实在太大,这在很大程度上取决于你的视力有多好,有多远你查看你的设备。你可能通常不会看你的手机三英寸远离你的脸,但是如果你这样做,300 ppi可能还不够。

如果你有一个使用CJK需要阅读文本字符,你最好看看一个电话1080 p显示自己,拿你通常的方式保持你的手机,看看感觉如何。但是,如果你坚持使用拉丁字符语言,它同样可能试图区分两个屏幕只会导致你的大脑捉弄你。

最终,选择你的电话,你和他们都没有特别糟糕。然而,更高的ppi在手机,好处是越可疑。即使你觉得实实在在的好处为1080 p显示在5”手机,它不会就此止步。LG,例如,最近展示了一个5.5“显示538 ppi令人难以置信。争论观看距离,特殊字符,除了“视网膜”定义,有一个上限的手机显示器和我们现在横跨这条线。有可能对大多数消费者来说,担心电池寿命和性能应该是一个更高的优先级。

来源:埃里克•RavenscraftLifehacker.com
  • 发布于2013年11月24日下午12:10坚持
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\"\"If 1080p in a phone sounds like a lot, that's because it is. When the first iPhone<\/a> with a \"retina display<\/a>\" came out, it packed a 3.5\" screen with a resolution<\/a> of 960x640, giving it 326 pixels per inch (or ppi). Notably, when Apple increased the physical size of the iPhone to 4\", it also increased the resolution to 1136x640 which is still 326ppi. In most cases, 300ppi or so exceeds what the human eye is able to distinguish at a normal viewing distance (which is what Apple's \"Retina\" is supposed to refer to).
\n
\nA 1080p phone, on the other hand, has an insane amount of pixels in comparison. In a 5\" phone, a display of 1920x1080 has a whopping density of 440ppi. If you go down to, say a 4.7\" phone like the HTC One, you reach 468ppi. That's a resolution that's about 50% higher than what most human eyes can readily distinguish under normal usage. You can probably see pixels if you squint really close, but is there any real benefit to going up this high?
\n
\nHigh resolution displays use more battery power<\/strong>
\nIt's impossible to add more pixels to a device without needing power to run them. Some types of panels like AMOLED only light up pixels as they're needed, which means you can conserve some power by using darker themes, but LCD displays will light them all up no matter what, which requires more juice. Not only to physically turn them on, but it also requires battery power to run the processor harder to account for the added complexity (which we'll come back to in a bit).
\n
Just how much extra power does it take? Well, when Apple released the 3rd generation iPad<\/a> with \"retina\" (here defined as 264ppi), it came with a whopping 11,666 mAh battery, which was 70% larger than the battery in the previous generation. However, it still only promised the same 10 hours of use. Why? Well, it would be oversimplifying to say it's solely because of the new display, but it's also correct to say that doubling the ppi over the previous tablet (132ppi for the iPad 2<\/a>) would require a significant increase in power consumption.
\n
You can somewhat see this reflected in Android<\/a> phones as well. While Android phones vary wildly in battery size, the ones that last the longest are also typically the ones with the biggest batteries. LaptopMag rated the LG G2 as the Android phone with the best battery life around. It also carries a 3,000 mAh battery. Comparatively, the Moto X has a 720p display with 2,200 mAh battery. Both phones will run a full day (and the G2 can actually run longer than that), but larger batteries don't make phones more efficient. They're more akin to Hummers with large tanks than a fuel-efficient hybrid.
\n
\nHigh resolution displays use more processing power<\/strong>
\nWhile powering all those pixels will have a direct effect on battery life, they'll have to go through some processing power on the way. How much is difficult to gauge since there are so many factors that affect performance and efficiency in software. However, as one independent game developer explained to us, increasing the number of pixels in a display will always tax the GPU more:
\n
\nThese higher res screens tax fragment shaders (which do the processing for each pixel) on the GPU more. That means you get worse battery life for the same GPU\/battery because for all applications more pixels need to be processed. It also means that in anything that actually gets near the limits of the hardware you have (primarily games), you're going to hit those limits much more quickly. Especially because, in games, the fragment shaders are, the vast majority of the time, going to be the primary bottleneck.
\n
\nIn most cases, we accept this trade-off because things look nicer. However, since the human eye can't tell much of a difference between a 300+ppi display and a 400+ppi display, the extra processing power needed to run those pixels is mostly wasted. Ironically, having a higher resolution display can result in worse-looking graphics purely because the GPU is wasting time on rendering more raw pixels (that you probably can't see), instead of allowing developers to use those resources on adding more elements or details (like the advanced particle systems, lighting effects, and texture mapping you see in advanced AAA games).
\n
\nHigh resolution displays are Good for CJK characters<\/strong>
\nThere are, however, a few benefits to having a high resolution display-like CJK characters. If you haven't heard of CJK characters, then this benefit doesn't apply to you. CJK stands for Chinese, Japanese, or Korean characters. Unlike the Latin-based alphabet that consists of a small collection of a couple dozen or so distinct symbols that create words based on combinations, CJK symbols can be distinct words on their own and potentially bear striking similarities to different words.
\n
\nThe question of whether or not super high-resolution displays actually aid in reading CJK characters is, as with anything, highly subjective. However, text is one of the first things to become illegible at low-resolutions and CJK characters are considerably more complex than Latin ones.
\n
\nKeep in mind that, while it's true in an overwhelming majority of cases that a ppi exceeding 300 is overkill, it depends heavily on how good your eyesight is and how far away you view your device. You probably don't normally look at your phone three inches away from your face, but if you do, 300ppi might not be enough.
\n
If you have a need to read text using CJK characters, your best bet is to just look at a phone with a 1080p display<\/a> yourself, hold it the way you normally hold your phone, and see how it feels for you. However, if you stick with latin-based characters, it's equally likely that trying to distinguish between two screens will just result in your brain playing tricks on you.
\n
\nUltimately, your phone choice is up to you and none of them are particularly bad. However, the higher up the ppi in phones get, the more questionable the benefit is. Even if you feel a tangible benefit to a 1080p display in a 5\" phone, it won't stop there. LG, for example, recently showed off a 5.5\" display with a mind-boggling 538ppi. Arguments about viewing distances, special characters, and \"retina\" definitions aside, there's an upper limit for phone displays and we're straddling that line now. Chances are for most consumers, worrying about battery life and performance should be a much higher priority.
\n
\nSource: Eric Ravenscraft, Lifehacker.com<\/a>\n\n<\/body>","next_sibling":[{"msid":26305271,"title":"The Google machine","entity_type":"ARTICLE","link":"\/news\/devices\/the-google-machine\/26305271","category_name":null,"category_name_seo":"devices"}],"related_content":[],"msid":26306637,"entity_type":"ARTICLE","title":"Do you need a smartphone with 1080p display?","synopsis":"\u200bIf 1080p in a phone sounds like a lot, that's because it is. When the first iPhone with a \"retina display\" came out, it packed a 3.5\" screen with a resolution of 960x640, giving it 326 pixels per inch (or ppi).","titleseo":"devices\/do-you-need-a-smartphone-with-1080p-display","status":"ACTIVE","authors":[],"Alttitle":{"minfo":""},"artag":false,"artdate":"2013-11-24 12:10:59","lastupd":"2013-11-24 12:27:07","breadcrumbTags":["iPhone","android","resolution","iPad","iPad 2","Retina Display","Devices","Smartphone","1080p display"],"secinfo":{"seolocation":"devices\/do-you-need-a-smartphone-with-1080p-display"}}" data-news_link="//www.iser-br.com/news/devices/do-you-need-a-smartphone-with-1080p-display/26306637">